Answer:
1st, 2nd, and 4th
Step-by-step explanation:
4
-3+4+2+1=4
$36 left
42+37=79
115-79=36
infinite solution
hello
we substitute b = 4a + 2 in the second expression
12a -3*(4a+2) = -6
<=> 12a -12a -6 = -6
<=> -6 = -6
which is always true
so there is infinite solution
hope this helps
